Abstract:Large power transformers play a vital role in power system. With the operation time going, there are more and more old transformers in China, which are still in service. However, based on the present time-based preventive test code for electric power equipment, it is difficult to conduct the decision-making. It is imperative to develop and carry out the condition monitoring and diagnosis (CMD) technologies. There are several parameters to characterize the aging condition, i.e., tensile strength (TS), degree of… Show more
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